Snap fastener



Patentd Jan. 3, 1922,

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R. I. MULVEY.

SNAP FASTENER.

APPLICATION FILED AUG.2, 1919.

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Specification of Letters Patent.

Application led August 2, 1919. Serial No. 314,824.

ers, of which the following-is a specification My invention relates tonew and useful improvements in snap fasteners land has for its objectthe provision of a snap fastener which may be readily attached to thefabric with which used.

Another object is the provision of a snap fastener which is durable instructure, economic in manufacture, and highly efficient in use. l -vOther objects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

|The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and in which,

Fig. 1 is a top plan view ofthe male member of my invention.

Fig. 2 is a central vertical sectional view of the male member of myinvention.

Fig. 3 is a top plan view of a male member of my invention with a partremoved.

Fig. 4 is a side elevational view of the female member of my invention.

Fig. 5 is a top plan view of the female member of my invention.

Fig. 6 is a bottom plan view of the female member of my invention.

Fig. 7 is a vertical sectional view of the female member of my inventionFig. 8 is a vertical sectional view of my invention in assembledposition.

Fig. 9 is a detailed sectional view of the socket of the female member.

Figs. 10, 11, and 12 are perspective views of the fastening means usedwith my invention.

The approved form of construction consists of a male and a femalemember. The male member comprises a metallic disk 13 formed centrally onwhich, preferably by swaging, is a stud 14 having a reduced neck. Theedge of the disk 13 is curled to form a groove in which the resilientwire member 16 is adapted to engage. Projecting Adiametrically from oneend of the member 16 and having a pointed end is a suitable pin 17 Atthe juncture 17 with the member 16 a torsional spring member may beformedv as shownin Fig. 10 or the member 17 may progect directlydiametrically upward from one end of the member 16 as shown in Fig.

12, or again the member 17 may be formed` irregularly as shown in Fig.v11 for the purpose of more securely engaging the fabricl into which themember 17 is intended tobe thrust.' At one portion of the member 15 isformed a suitable slot18. in'which the pointed end of the member 17 isadapted to engage.

tion as shown atk 19 for the purpose ofl lockthe member 17 in position.Provided upon the disk portion 13 are suitable slots 20by means of whichthe disk may be sewed to the fabric with which it is used in whichcasetlie pin fastener'member 16 with its cooperating portion17 will beeliminated.

`The female portion of the device consists of a disk 21, the edgeofwhich is curled as at 23 to form a wire engaging groove. An additionalportion 22 is secured to the member 23 and also grooved for the purposeof engaging member 16. Engaged in the groove 23 is a resilient wirelocking member 24, the main portion of which is circular, the ends beingformed substantially S-shaped as shown in Fig 6. llhe outer end 26 ofthis -shaped portion is adapted to enga e in a slot 25 formed atopposite sides of t e cup shaped socket 27 which is formed in the disk21. The portion 22 is provided with a similar slot 18 and a similarcatch member 19 as already described. This female disk 21 is alsoprovidedwith the opening 20 for the purpose of permitting the same to besewed onto the garment with which used.

ln the use of my invention the female disk is secured to the fabric withwhich used by means of the pin member 17. By the method of fasteningwhich I have provided the disk is secured to the garment and thepossibility of becoming detached is reduced to a minimum. Thecooperating disk or the male portion of the fastener is likewise securedto the garment and the stud 14 is adapted to engage in the cup shapedsocket which is formed in the female member, the enlarged head of themember 14 being curved on its upper surface upon being thrust into thesocket 27 would force the ends 26 of the member 24 backward out ofengagement with the slot 25. The ends 26 would, upon the head of themember 14 being thrust en- One. of the adjacent( ends of the curledportion 15 is formed with a catch por-.

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tirely Within the socket 27, because of their resiliency, again engagein the slot and against the reduced neck of the stud 14E thus i securelylocking the two members together.

While I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modication without departing from the spirit of invention.I, therefore, do not wish to be limited to the precise details ofconstruction set forth, but desire to availmyself of such variations andmodi- `iications as come within the scope ofthe apcular portion engagedvin-said groove and having a diametrically extending pointed end; a cupshaped socket formed centrally in Vsaid disk kand having slots onopposite sides; and a resilient wire member having a circularportioniand substantially S-shaped ends adapted to engage in said slots;the other element comprising a disk having a stud formed centrallythereon and adapted to to be inserted in said socket and engage saidS-shaped ends, substantially as described.

2. A` snap fastener `having twoVV elements adapted to detachably engagewith each other, each of said elements comprising` a disk having theedge thereof curled to form a groove; a resilient wire pin having thecircular portion engaged in each of said grooves and having'adiametrically extending pointed end; a cup shaped socket formed een#tra'lly in one of Vsaid disks and having slots on opposite sides; a studformed centrally y on the other of said disks and adapted to engage insaid socket; and means engaging in said slots securing said stud in saidsocket, substantiallyas described.

3. A snap fastener having two elements Y adapted to detachably engagewith each other, each of said elements comprising a diskhaving the edgethereof curled to form a groove; aresilient wire pin having the circularportion engaged in each ofl said grooves and having adiametricallyextending pointed end; a cup-shaped socket formed.centrally in one of said Vdisks and having slots inopposite sides;anadditional groove formed in said socketed disk; and a curved membermounted in said additional groove and provided with ends which engage insaid slots to secure said stud in said socket, substantially asdescribed.

In testimony whereof I have signed my` name to this specilication in thepresence of two subscribing witnesses.

ROBERT J. MULVEY.

Witnesses: Y ,l V

B. Gr. RICHARDS, L. J.`ERIo1rsoN.

